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7.3
Relays
7.3.1
General Introduction
Relays are the primary controls of external devices such as pumps or alarms. The device
comes with extensive functions for relays. The device has six relays. Each one may be
independently assigned to one function and has a corresponding status icon on the LCD.
The functions fall under three modes of operation:
Mode
Alarm
Pump
Miscellaneous
HydroRanger 200 HMI
Operating Instructions, 06/2018, A5E36281317-AC
Function
Alarm ON = LCD Icon ON
Pump ON = LCD Icon ON
Contact closed = LCD Icon ON
= relay coil de-energized
= relay coil energized
= relay coil energized
Operating
7.3 Relays
95
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Troubleshooting
